Suppose you want to change the date, month in datetime datatype column
Ex: 1966-09-01 00:00:00 ---->>>> 1966-01-09 00:00:00
Table Name: TableName
Column Name: dob
update TableName set dob=convert(datetime, convert(varchar(10), convert(varchar(4),year(dob))+'-'+right('0' +convert(varchar(2),day(dob)),2)+'-'+ right('0'+convert (varchar(2),month(dob)),2)),101)
Created by Vikas Jaiswal
Contact on vikasjaiswal.ctit@gmail.com